RTDs and thermistors are temperature sensing devices that exhibit a change in what, which is dependent upon temperature?

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Multiple Choice

RTDs and thermistors are temperature sensing devices that exhibit a change in what, which is dependent upon temperature?

Explanation:
Both RTDs and thermistors sense temperature through a change in resistance as temperature changes. The guiding idea is that their electrical resistance varies with temperature in a predictable way, and that variation is what you measure to determine temperature. An RTD, often made of platinum, typically increases in resistance as temperature rises. Thermistors are semiconductor devices and can be either NTC (resistance decreases with increasing temperature) or PTC (resistance increases with increasing temperature). In all cases, the key quantity is resistance, not capacitance, inductance, or frequency, which is why resistance is the correct answer.

Both RTDs and thermistors sense temperature through a change in resistance as temperature changes. The guiding idea is that their electrical resistance varies with temperature in a predictable way, and that variation is what you measure to determine temperature. An RTD, often made of platinum, typically increases in resistance as temperature rises. Thermistors are semiconductor devices and can be either NTC (resistance decreases with increasing temperature) or PTC (resistance increases with increasing temperature). In all cases, the key quantity is resistance, not capacitance, inductance, or frequency, which is why resistance is the correct answer.

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